Hi, On Mon, 22 Aug 2016 14:58:42 +0200, [email protected] wrote: > > > > Florian, in fe6cc55f you described a BUG due to gso_size decrease. > > I've tested both bridged and routed cases, but in my setups failed to > > hit the issue; Appreciate if you can provide some hints. > > Still get the BUG, I applied this patch on top of net-next. > > On hypervisor: > 10.0.0.2 via 192.168.7.10 dev tap0 mtu lock 1500 > ssh [email protected] 'cat > /dev/null' < /dev/zero > > On vm1 (which dies instantly, see below): > eth0 mtu 1500 (192.168.7.10) > eth1 mtu 1280 (10.0.0.1) > > On vm2 > eth0 mtu 1280 (10.0.0.2) > > Normal ipv4 routing via vm1, no iptables etc. present, so > > we have hypervisor 1500 -> 1500 VM1 1280 -> 1280 VM2 > > Turning off gro avoids this problem.
Thanks Florian, will dive into this.
